Home / 139,918,526,826.23-209,898,775,559.70-49,143,943,631.51

Finding the Fourth Proportional to 139,918,526,826.23, 209,898,775,559.70 and 49,143,943,631.51

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Solution

The fourth proportional to 139,918,526,826.23, 209,898,775,559.70 and 49,143,943,631.51 is: 73,723,286,175.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,918,526,826.23 : 209,898,775,559.70 = 49,143,943,631.51 : x
  2. Step 2: Convert to fraction form
    139,918,526,826.23/209,898,775,559.70 = 49,143,943,631.51/x
  3. Step 3: Cross multiply
    139,918,526,826.23x = 209,898,775,559.70 × 49,143,943,631.51
  4. Step 4: Simplify right side
    139,918,526,826.23x = 10,315,253,594,428,236,890,112
  5. Step 5: Solve for x
    x = 10,315,253,594,428,236,890,112/139,918,526,826.23
  6. Step 6: Final answer
    x = 73,723,286,175.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.